T-Mobile today said it has activated its first 600 MHz cell site in Cheyenne, Wyo. T-Mobile is using Nokia equipment to provide LTE coverage across Cheyenne in the 600 MHz band. The Un-carrier plans to light up 600 MHz service in rural areas around the country first. Markets that can expect to see 600 MHz service by the end of the year include Wyoming, Northwest Oregon, West Texas, Southwest Kansas, the Oklahoma panhandle, Western North Dakota, Maine, Coastal North Carolina, Central Pennsylvania, Central Virginia, and Eastern Washington. T-Mobile says deploying LTE on 600 MHz in these markets will improve its coverage from 315 million POPs today to 321 million by year's end. T-Mobile won the spectrum licenses in the reverse auction that concluded earlier this year. The government gave T-Mobile the licenses just two months ago. The company plans to deploy service on the 600 MHz airwaves as quickly as it can to help shore up weak coverage areas. The service may be up and running, but there are no devices yet that can use it. According to T-Mobile, Samsung and LG plan to release compatible handsets during the fourth quarter of the year.